<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>统一身份认证登录</title>
    <style>
        body { font-family: Arial, sans-serif; }
        .container { width: 300px; margin: 0 auto; padding-top: 100px; }
        .error { color: red; margin-bottom: 10px; }
        input { width: 100%; padding: 8px; margin: 5px 0; }
        button { width: 100%; padding: 10px; background-color: #4CAF50; color: white; border: none; }
    </style>
</head>
<body>
    <div class="container">
        <h2>统一身份认证登录</h2>
        <div th:if="${error}" class="error" th:text="${error}"></div>
        <form method="post">
            <input type="text" name="username" placeholder="用户名" required>
            <input type="password" name="password" placeholder="密码" required>
            <button type="submit">登录</button>
        </form>
    </div>
</body>
</html>
    